Microbiome Ch. 1

Which of the following is a microorganism?

• Cell

• Human

• Molecule

• Bacteria

Which of the following is an organism?

• Rock

• Tree

• Cloud

• Car

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Which unit of measure is the smallest?

• Micrometers

• Nanometers

• Millimeters

• Meters

Most cells are measured in units called:

• MIllimeters

• Micrometers

• Nanometers

• Picometers

When using our scale models we discovered that:

• Cells are much smaller than molecules

• Molecules are much smaller than cells

• Cells are larger than most organisms

• Molecules are made of cells

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Why might a scientist make a scale model of a cell?

• To display it

• To easily see or investigate the parts

• To make it smaller

• To grow more of them

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Which of the following organisms is the smallest?

• An ant

• An eyelash mite

• An E-coli bacteria

• A head lice

True or False: There are trillions of microorganisms on and inside of the human body.

• True

• False

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The prefix "micro" means

• large.

• tiny.

• extreme.

All living things are made of ______________.

• cells

• spaghetti

• fungus.

• bacteria

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